Alpha One & Gen 2 Outdrive Parts *Drawings *Videos
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Mercruiser Alpha One Screw *Outdrive top cover

GLM Marine aftermarket Mercruiser Alpha 1 stern drive cover screw for upper gearcase

28300 Screw Mercruiser Top Cover 10-98794

28300 Screw Mercruiser Top Cover 10-98794

P/N 28300 cover screw $4.95

Customers who ordered P/N 28300 also purchased:

28402 Generation 2 kit 828692A1
28402 Generation 2 kit 828692A1

P/N 28402 Top cover kit for the Alpha One Generation 2 upper housing. This kit includes bearing P/N 21511, shims, 4 screws and o-ring. Compatible with 1991 and up models. Replaces OEM 828692A1. $190.95
28400 Alpha Generation 2 Cover assembly

28400 Alpha Generation 2 Cover assembly

P/N 28400 MR / Alpha One generation 1 cover assembly for the upper housing (1970 - 1990 models). Includes bearing P/N 21510, shims, o-ring and 4 screws. Replaces OEM 94998A4. $125.99
87500 Alpha one stern drive seals 1970 thru 1989

87500 Alpha one stern drive seals 1970 thru 1989

P/N 87500 Upper gear case seal and gasket kit for all models up to 1990. Replaces OEM 26-32511A1. $24.95

P/N 87501 Upper seal kit for Alpha 1 Generation 2 (1991 and up) models. Replaces OEM 26-32511A1. $25.95
317201 Large Sealant-Johnson
317201 Large Sealant-Johnson

P/N 508235 Gasket sealant (includes brush inside lid). 4 ounce. $24.95

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